Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, certainly you’ve already had that apprehension. So when you listen to an alternator noise on GMC Acadia, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this article to support you locate the origins of alternator sounds. In this article, you will first learn the role and operation of the alternator in your GMC Acadia and then what the causes and solutions to alternator noise on GMC Acadia may be.
Role and alternator operation GMC Acadia
Alternator role
Your alternator is an vital part of your GMC Acadia. Indeed, its task is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of recharging the battery once the car is in motion, to provide power to the car in motion and to let you to always have a sufficient energy source to be able to restart the next time.
Alternator functioning
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The alternator works on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while rotating generates electricity. It is the engine itself that will give the energy required by the alternator to generate the energy, via the accessory belt or alternator belt. When your GMC Acadia engine stops, the battery takes over to give the car with energy.
What are the several alternator noises or sounds on my GMC Acadia and what are the causes?
I discover a knocking noise originating from the alternator of my GMC Acadia
One of the characteristic noises of a tired alternator on GMC Acadia is a knocking noise. This alternator sound on GMC Acadia will most of the time appear when your engine is idling, it can be connected to voltage drops that could affect the normal operation of electrical parts such as headlights for example. Most often, it is a of both bearings of the alternator that is faulty, to examine it, use a multimeter on the terminals of your car with the engine running and you must obtain a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your GMC Acadia is tired and you should consider replacing the bearing if it is the only reason otherwise the complete part.
I listen to a grinding noise coming from the alternator of my GMC Acadia
If you are in the case where the alternator of your GMC Acadia generates grinding sounds, in this case you will have to check it more seriously. This indicator can testify as for the knocking sound of a tired bearing, however , usually, we often see by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you consult this document to find all the necessary information to solve an accessory belt noise on GMC Acadia.
I listen to a loud noise from the alternator of my GMC Acadia
Finding out a loud noise from the alternator of your GMC Acadia is quite common, in fact, it emits an audible sound when producing the electrical pulses it generates. It is up to you to examine that the battery indicator light on your dashboard does not show up, and that you do not have a voltage drop when your engine is running (headlight or dashboard light that jumps for example. If this noise is too loud, we advise that you check out this document to find other ways to solve problem of noises from front end on GMC Acadia.
